From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexmonthy@voxpopuli.im (Alexandre Montplaisir) Date: Fri, 30 May 2014 14:55:30 -0400 Subject: [lttng-dev] Does LTTng UST support ARM? In-Reply-To: References: Message-ID: <5388D422.9030902@voxpopuli.im> On 05/30/2014 04:53 AM, Hongbo Zhang wrote: > Thank you Jan. > Encouraged by the truth that LTTng UST does work on ARM, I paid more > efforts and run it on my ARM board at last. > > I am using a Ubuntu on my board, and I installed lttng-ust and > userspace-rcu from source codes, but installed lttng-tools by apt-get > command(the babeltrace was also included I think), the reason I failed to > trace the lttng-tools from apt-get doesn't work and even doesn't give any > suggestive output. > Then I re-installed lttng-tools and babeltrace from source codes again, > then everything works :) You need to use lttng-ust and lttng-tools (and lttng-modules if you use the kernel tracer) from the same release branch. So everything needs to be 2.4.x, or everything 2.3.x, etc. If you compiled lttng-ust 2.4 from source, but the distro package installed lttng-tools let's say 2.2, it's expected that they wouldn't work. :) However I'd suppose some sort of user-friendly message should be printed if incompatible versions are used together. Cheers, Alexandre